NZ552633A - Acoustic laminate - Google Patents
Acoustic laminateInfo
- Publication number
- NZ552633A NZ552633A NZ552633A NZ55263305A NZ552633A NZ 552633 A NZ552633 A NZ 552633A NZ 552633 A NZ552633 A NZ 552633A NZ 55263305 A NZ55263305 A NZ 55263305A NZ 552633 A NZ552633 A NZ 552633A
- Authority
- NZ
- New Zealand
- Prior art keywords
- batt
- layer
- acoustic
- viscoelastic
- filaments
- Prior art date
Links
- 239000000463 material Substances 0.000 claims abstract description 88
- 230000004888 barrier function Effects 0.000 claims abstract description 65
- 230000014759 maintenance of location Effects 0.000 claims abstract description 22
- 239000003190 viscoelastic substance Substances 0.000 claims abstract description 13
- 230000000717 retained effect Effects 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 29
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 20
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims description 16
- 239000000945 filler Substances 0.000 claims description 15
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 12
- 239000001828 Gelatine Substances 0.000 claims description 11
- 229920000159 gelatin Polymers 0.000 claims description 11
- 235000019322 gelatine Nutrition 0.000 claims description 11
- 238000000034 method Methods 0.000 claims description 11
- 235000011187 glycerol Nutrition 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 10
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 8
- 229920002472 Starch Polymers 0.000 claims description 8
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 8
- 229910001629 magnesium chloride Inorganic materials 0.000 claims description 8
- 239000008107 starch Substances 0.000 claims description 8
- 235000019698 starch Nutrition 0.000 claims description 8
- 239000011159 matrix material Substances 0.000 claims description 7
- 239000000806 elastomer Substances 0.000 claims description 6
- 229920001971 elastomer Polymers 0.000 claims description 6
- 238000010521 absorption reaction Methods 0.000 claims description 4
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 4
- 239000011236 particulate material Substances 0.000 claims description 4
- 239000004411 aluminium Substances 0.000 claims description 3
- 229910052782 aluminium Inorganic materials 0.000 claims description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 3
- 239000011490 mineral wool Substances 0.000 claims description 3
- 238000004080 punching Methods 0.000 claims description 3
- 239000005995 Aluminium silicate Substances 0.000 claims description 2
- UXVMQQNJUSDDNG-UHFFFAOYSA-L Calcium chloride Chemical compound [Cl-].[Cl-].[Ca+2] UXVMQQNJUSDDNG-UHFFFAOYSA-L 0.000 claims description 2
- VEXZGXHMUGYJMC-UHFFFAOYSA-M Chloride anion Chemical compound [Cl-] VEXZGXHMUGYJMC-UHFFFAOYSA-M 0.000 claims description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N Ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 claims description 2
- 239000005977 Ethylene Substances 0.000 claims description 2
- 108010068370 Glutens Proteins 0.000 claims description 2
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical class CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 2
- 239000012814 acoustic material Substances 0.000 claims description 2
- 229910052784 alkaline earth metal Inorganic materials 0.000 claims description 2
- 235000012211 aluminium silicate Nutrition 0.000 claims description 2
- 239000003963 antioxidant agent Substances 0.000 claims description 2
- 235000006708 antioxidants Nutrition 0.000 claims description 2
- 239000001110 calcium chloride Substances 0.000 claims description 2
- 229910001628 calcium chloride Inorganic materials 0.000 claims description 2
- 239000000417 fungicide Substances 0.000 claims description 2
- 235000021312 gluten Nutrition 0.000 claims description 2
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims description 2
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 2
- 235000019422 polyvinyl alcohol Nutrition 0.000 claims description 2
- 235000013772 propylene glycol Nutrition 0.000 claims description 2
- 239000011521 glass Substances 0.000 claims 1
- 238000013016 damping Methods 0.000 description 8
- 239000000835 fiber Substances 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000007792 addition Methods 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000005030 aluminium foil Substances 0.000 description 2
- 239000003365 glass fiber Substances 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/02—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer
- B32B5/06—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by structural features of a fibrous or filamentary layer characterised by a fibrous or filamentary layer mechanically connected, e.g. by needling to another layer, e.g. of fibres, of paper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/20—Layered products comprising a layer of metal comprising aluminium or copper
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/10—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material
- B32B3/14—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a discontinuous layer, i.e. formed of separate pieces of material characterised by a face layer formed of separate pieces of material which are juxtaposed side-by-side
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B5/00—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts
- B32B5/22—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed
- B32B5/24—Layered products characterised by the non- homogeneity or physical structure, i.e. comprising a fibrous, filamentary, particulate or foam layer; Layered products characterised by having a layer differing constitutionally or physically in different parts characterised by the presence of two or more layers which are next to each other and are fibrous, filamentary, formed of particles or foamed one layer being a fibrous or filamentary layer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B9/00—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00
- B32B9/02—Layered products comprising a layer of a particular substance not covered by groups B32B11/00 - B32B29/00 comprising animal or vegetable substances, e.g. cork, bamboo, starch
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/413—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties containing granules other than absorbent substances
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4209—Inorganic fibres
- D04H1/4218—Glass fibres
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/40—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties
- D04H1/42—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres from fleeces or layers composed of fibres without existing or potential cohesive properties characterised by the use of certain kinds of fibres insofar as this use has no preponderant influence on the consolidation of the fleece
- D04H1/4326—Condensation or reaction polymers
- D04H1/435—Polyesters
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H1/00—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres
- D04H1/70—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres
- D04H1/74—Non-woven fabrics formed wholly or mainly of staple fibres or like relatively short fibres characterised by the method of forming fleeces or layers, e.g. reorientation of fibres the fibres being orientated, e.g. in parallel (anisotropic fleeces)
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H13/00—Other non-woven fabrics
-
- D—TEXTILES; PAPER
- D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
- D04H—MAKING TEXTILE FABRICS, e.g. FROM FIBRES OR FILAMENTARY MATERIAL; FABRICS MADE BY SUCH PROCESSES OR APPARATUS, e.g. FELTS, NON-WOVEN FABRICS; COTTON-WOOL; WADDING ; NON-WOVEN FABRICS FROM STAPLE FIBRES, FILAMENTS OR YARNS, BONDED WITH AT LEAST ONE WEB-LIKE MATERIAL DURING THEIR CONSOLIDATION
- D04H5/00—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length
- D04H5/02—Non woven fabrics formed of mixtures of relatively short fibres and yarns or like filamentary material of substantial length strengthened or consolidated by mechanical methods, e.g. needling
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B1/86—Sound-absorbing elements slab-shaped
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/02—Synthetic macromolecular fibres
- B32B2262/0276—Polyester fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/101—Glass fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2262/00—Composition or structural features of fibres which form a fibrous or filamentary layer or are present as additives
- B32B2262/10—Inorganic fibres
- B32B2262/108—Rockwool fibres
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/30—Properties of the layers or laminate having particular thermal properties
- B32B2307/306—Resistant to heat
- B32B2307/3065—Flame resistant or retardant, fire resistant or retardant
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/70—Other properties
- B32B2307/726—Permeability to liquids, absorption
- B32B2307/7265—Non-permeable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2311/00—Metals, their alloys or their compounds
- B32B2311/24—Aluminium
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2317/00—Animal or vegetable based
- B32B2317/20—Starch
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
- B32B2419/04—Tiles for floors or walls
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/76—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to heat only
- E04B2001/7683—Fibrous blankets or panels characterised by the orientation of the fibres
-
- E—FIXED CONSTRUCTIONS
- E04—BUILDING
- E04B—GENERAL BUILDING CONSTRUCTIONS; WALLS, e.g. PARTITIONS; ROOFS; FLOORS; CEILINGS; INSULATION OR OTHER PROTECTION OF BUILDINGS
- E04B1/00—Constructions in general; Structures which are not restricted either to walls, e.g. partitions, or floors or ceilings or roofs
- E04B1/62—Insulation or other protection; Elements or use of specified material therefor
- E04B1/74—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls
- E04B1/82—Heat, sound or noise insulation, absorption, or reflection; Other building methods affording favourable thermal or acoustical conditions, e.g. accumulating of heat within walls specifically with respect to sound only
- E04B1/84—Sound-absorbing elements
- E04B2001/8457—Solid slabs or blocks
- E04B2001/8461—Solid slabs or blocks layered
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/249921—Web or sheet containing structurally defined element or component
- Y10T428/249924—Noninterengaged fiber-containing paper-free web or sheet which is not of specified porosity
- Y10T428/24994—Fiber embedded in or on the surface of a polymeric matrix
Landscapes
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Acoustics & Sound (AREA)
- Inorganic Chemistry (AREA)
- Architecture (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Electromagnetism (AREA)
- Laminated Bodies (AREA)
- Building Environments (AREA)
Abstract
There is provided an acoustic laminate including: a first layer of viscoelastic acoustic barrier material; a sound absorbing/decoupling batt affixed to the first layer of viscoelastic acoustic barrier material, the batt at rest defining a batt plane; the batt including a plurality of batt fibres; the batt further including retaining fibres, wherein the batt fibres and/or retaining fibres are disposed perpendicular to the batt plane and having end portions thereof disposed at a batt surface, the end portions affixed to the viscoelastic barrier material so that either the first layer of viscoelastic acoustic barrier material or the sound absorbing/decoupling batt itself may be retained in spaced relation from a mounting surface when the laminate is so mounted, the retention being achieved in any orientation by bearing a mass load of the batt or first layer of viscoelastic material along the axis of the affixed batt fibres and/or retaining fibres.
Description
552633
ACOUSTIC LAMINATE
Field of the Invention
The present invention relates generally to materials which attenuate incident acoustic energy or attenuate acoustic energy passing through the material. Some embodiments of the present invention have application as, or within laminate structures which increase the Transmission Loss (TL) of enclosures, walls, ceilings, floors and other dividing structures by reducing both the airborne and structural components of the TL.
Other embodiments have application in incident noise attenuation to reduce acoustic wave reflection within an enclosure.
Background to the Invention
Sound absorbing and decoupling material such as batts constructed from mineral fibre (rock wool), glass fibre, and polyester are often placed in a space between two dividing panels to absorb incident sound energy and reduce noise transmission from one side of the panel to another. Often the dividing structure is a single panel, and may be a
ceiling panel, disposed generally horizontally. It is often the case that a layer of limp,
dense material is adhered to one side, often the underside, of the batt, so that the limp layer "floats" on the batt with respect to the panel, providing a barrier to, and much reducing the energy of incident sound waves.
Over time, especially where the panel is a ceiling panel, and also in vertical wall installations, the mass of the limp layer or barrier tears the fibres of the batt away from their hold on each other. The barrier falls away, and any sound energy is subsequently less impeded from passing through the dividing structure. Heavy vibrations generally associated with high sound levels generally accelerate this process.
RECEIVED at IPONZ on 26 March 2010
C:\NRPortW\DCC\TXS\2787371 l,I>OC-25/03/2OlO ------
552633
Also, transmission through dividing structures via structural vibration and reflection of energy from surfaces within an enclosure or space all combine to increase the Leq within the space, causing distractions to users of the space.
The present invention seeks to ameliorate one or more of the abovementioned 5 disadvantages.
Summary of the Invention
According to one aspect of the present invention there is provided an acoustic laminate 10 including: a first layer of viscoelastic acoustic barrier material a flexible sound absorbing/sound decoupling batt affixed to the first layer viscoelastic acoustic barrier material, the flexible batt at rest defining a batt plane; the flexible batt including a plurality of batt filaments, the flexible batt further including retaining filaments wherein the batt filaments or the retaining filaments are disposed perpendicular to the batt plane and having 15 end portions thereof disposed at the batt surface, the end portions affixed to the viscoelastic barrier material so that either the first layer of viscoelastic acoustic barrier material or the flexible sound absorbing/decoupling batt itself may be retained in spaced relation from a mounting surface when the laminate is so mounted, the retention being achieved in any orientation by bearing a mass load of the batt or first layer of viscoelastic material along 20 the axis of the affixed batt filaments or retaining filaments.
Preferably, the end portions of the batt filaments and/or retaining filaments are embedded in the first layer of viscoelastic barrier material so as to improve retention of the first layer.
Preferably, the first layer of viscoelastic acoustic barrier material is in the form of strips spaced apart from one another along an axis of the batt plane so as to provide some effective damping when mounted against a mounting surface, and to reduce mass.
552633
Preferably, the first layer of viscoelastic acoustic barrier material is in the form of pads spaced apart from one another across a matrix or grid in the batt plane so as to provide some effective damping when mounted against a mounting surface, and to reduce mass.
Preferably, the batt fibres are in the form of one or more folds or loops arranged along fold or loop axes of the batt plane into leaves, the or each fold or loop commencing at a first surface, extending towards the other surface and returning to the first surface, so that sound absorption and load bearing is carried out by the batt fibres.
Preferably, a plurality of leaves are arranged along a surface or between two surfaces,
along an axis perpendicular to the fold or loop axis to form the or each batt.
Preferably, the batt fibres and retention fibres are constructed from mineral wool, glass fibre or polyester, or indeed any suitable absorptive material.
Preferably, the batt fibres are aligned parallel with the batt plane, and the retention fibres are formed from the batt fibres by needle-punching the batt fibres into the first layer of viscoelastic acoustic barrier material to become retention fibres.
Preferably, the first layer of viscoelastic acoustic barrier material is of a density of between approximately 1000kg/m3 to 3000kg/m3. However, it is preferred that the first layer of viscoelastic acoustic barrier material has a density of approximately 1470kg/m3
Preferably, the first layer of viscoelastic acoustic barrier material has a surface density of 25 approximately 2.5kg/m2.
Preferably, the first layer of viscoelastic acoustic barrier material has a thickness of below 6mm. However, it is preferred that the first layer of viscoelastic acoustic barrier material has a thickness of approximately 1.7mm.
552633
Preferably, the first layer of viscoelastic acoustic barrier is constructed from a polymeric elastomer impregnated with any kind of particulate material. Preferably, the particulate material is calcium carbonate.
Preferably, the first layer of viscoelastic acoustic barrier material is a composition including water, gelatine, glycerine and a filler material.
Preferably, the composition includes:
-40 wt% water 10 5 - 30 wt% gelatine
-40 wt% glycerine; and 20 - 60 wt% filler material.
Preferably, the composition also includes 1 to 15 wt% of a group II metal chloride such as 15 for example calcium chloride or magnesium chloride.
Preferably, the composition includes 2 to 10 wt% magnesium chloride.
Preferably, the composition includes 0.5 to 7 wt% starch or gluten.
Preferably, the starch is provided from the addition of cornflour to the composition.
Preferably, the filler material is a non-reactive material with a high density.
Preferably, the density of the filler material is greater than 1 g/cm3.
Preferably, the density of the filler material is approximately 2.0 to 3.0 g/cm3.
Preferably, the filler material may be chosen from any non-reactive material with a high 30 density such as for example barium sulphate or KAOLIN.
Preferably, the composition includes:
552633
-25 wt% water 5-20 wt% gelatine 10-25 wt% glycerine;
40 - 60 wt% filler material;
1-10 wt% magnesium chloride; and
0.5-3 wt% starch.
Preferably, the composition includes constituents such as for example ethylene and/or propylene glycols; polyvinyl alcohols; deodorisers; anti-oxidants and/or fungicides.
Preferably, the Young's Modulus of the first layer of viscoelastic material is less than 344kPa.
Preferably, the first layer of viscoelastic acoustic barrier material is faced on one side with 15 a nonwoven polyester of thickness approximately 0.05mm.
Preferably, on one side of the first layer of viscoelastic material there is provided an aluminium film reinforced with polyester as a water barrier and to provide some resistance for the laminate from fire damage.
Preferably, a second layer of viscoelastic acoustic barrier material is mounted on the other side of the laminate from the first layer of viscoelastic acoustic barrier material, the second layer to provide some structural damping to a mounting surface or structure.
Preferably, a spacer is provided on which a floor covering may "float" in order to reduce peak impact forces from footfalls, reducing structural vibration through, and reflection from the surfaces within an enclosure.
According to another aspect of the present invention there is provided a method for 30 producing an acoustic laminate, the method including the steps of:
affixing a layer of viscoelastic acoustic barrier material onto a batt which has batt fibres
RECEIVED at IPONZ on 26 March 2010
C:\NRPortbl\DCC\TXS\278737I l.DOC-25/03/2010 ------
552633
-6
According to one aspect of the present invention there is provided a method for producing an acoustic laminate, the method including the steps of: affixing a layer of viscoelastic acoustic barrier material onto a flexible batt which has batt filaments or retaining filaments arranged perpendicular to a batt plane in which the flexible batt is disposed at rest, so that 5 ends of the batt filaments or retaining filaments at a surface of the batt plane are affixed to the layer of the viscoelastic acoustic barrier material for retention of the batt or first layer in spaced relation to a mounting surface when the laminate is so mounted.
Preferably, the step of affixing the first layer involves adhering the first layer to the batt.
Preferably, the step of affixing the first layer involves pouring the first layer onto the batt so that the ends of the batt filaments and/or retaining, filaments are embedded in the first layer when it cures, providing improved retention of the first layer to the flexible batt.
Preferably, the first layer is poured in spaced-apart strips along an axis of the batt plane or in a matrix of pads spaced across a batt surface plane.
Description of the Preferred Embodiments
In order to enable a clearer understanding of the invention, it will hereinafter be described with reference to drawings and description of preferred embodiments. In the drawings:
Fig. 1 is a side view of a laminate structure according to a preferred embodiment of the present invention;
Fig. 2 is a side view of a laminate structure according to a second preferred embodiment of the present invention;
Fig. 3 is a side view of a laminate structure according to a third preferred embodiment of 30 the present invention;
552633
Figs 5 and 6 are isometric views of a laminate structure showing a tertiary layer, the tertiary layer being in the form of spaced apart geometric portions of damping material;
Fig. 7 is an isometric view of a preferred embodiment of the present invention,
being a laminate structure having two complete secondary layers sandwiching a batt.
Referring to Fig. 1 there is shown a first embodiment of acoustic-attenuating laminate generally indicated at 10 the laminate 10 including a batt 12 including atop
surface 14 and a bottom surface 16. In its relaxed state the batt 12 adopts a flat plane 13, however, it is flexible enough to conform to convoluted surfaces (not shown) if pressed gently. The batt 12 includes a plurality of fibres 18 which are arranged so that major portions thereof lie perpendicular to the flat plane 13 when the batt is in a relaxed state.
The fibres 18 in the batt 12 are arranged into a plurality of loops or folds 20. Each loop or fold 20 commences at or near the top surface 14. Each fold or loop 20, in side elevation, is curved slightly, to form a fold or loop 20 in the shape of a crescent 22. This crescent 22 assists the batt to perform a sound-absorption function, without reducing to a great degree the axial load-bearing capability of the fibres 18.
Each fold or loop 20 is aligned along an axis 25 (into the page of Figs 1 and 2) to form leaves 24. To form the batt, a plurality of leaves 24 are arranged along an axis 26 in the plane of one of the top or bottom surfaces which is also perpendicular to the fold or loop 20 axis. The fibres 18 are constructed from polyester.
A first layer of viscoelastic acoustic barrier material 30 is provided in the embodiment shown, fixed by adhesive to the top surface 14 of the batt 12. The first layer of viscoelastic acoustic barrier material 30 is in the form of a limp material, being in this form a polymeric elastomer 32 impregnated with a material (not shown) in the form of
calcium carbonate (not shown). The lamina 30 is approximately 1,7mm thick, of density 1470kg/m3. In another embodiment the first layer of viscoelastic acoustic barrier material
552633
is a composition including a mixture of water, gelatine, glycerine and a filler material, an example of which is described below in a non-limiting example.
A facing 34 is provided in the form of aluminium foil 36 to provide a degree of fire 5 protection for the polymeric elastomer 32 and batt 12. The facing 34 is adhered to an upper surface of the first layer of viscoelastic acoustic barrier material 30.
In Figure 2, a similar arrangement to that shown in Figure 1 is shown, however, the embodiment is a double-layer so that the first layer of viscoelastic acoustic barrier material 10 130 floats between two batts 112. Advantageously, the structure of preferred embodiments of the present invention allows these stackings because load-bearing is much improved over known batts. Like numerals between the Figures denote like features.
A second embodiment does not differ greatly in side view from that shown in Figs 15 1 and 2 and will be hereinafter described. A first layer 30 is applied to the batt 12 by being poured onto the top surface 14 of the batt 12. This allows the ends of the loops 20 at the top surface to be incorporated or embedded by the first layer 30 and are retained therein upon curing of the viscoelastic acoustic barrier 30. This improved retention of the layer 30 along the axes of the fibres.
In operation, when the laminate is installed on an overhead ceiling panel or even a vertical wall (not shown), the layer 30 is spaced from the panel by the batt, and the tendency for the mass of the first layer of viscoelastic acoustic barrier material 30 to tear the fibres 18 away from each other and the wall is reduced. This is because the fibres 18 25 support the mass of the first layer of viscoelastic acoustic barrier material 30 along their axis - an efficient mode of support, at a lower cost than other materials.
The first layer 30 is in one form in the form of strips of pads and is affixed to the batt and mounted to the mounting surface, so that the mounting surface is damped.
Referring to Figures 3 and 4 there is shown laminate structures according to preferred embodiments of the present invention. Firstly turning to Figure 3, a laminate
552633
structure 210 is shown, the structure 210 including a batt 212 having a top surface 214 and a bottom surface 216. In its relaxed state the batt 212 adopts a flat plane 213, however, it is flexible enough to conform to slightly convoluted surfaces (not shown) if pressed gently. The batt 212 includes a plurality of fibres 218 which are arranged to lie parallel to the flat 5 plane 213 when the batt 212 is in a relaxed state. The fibres 218 are constructed from polyester.
Retaining means 250 are provided to grasp a plurality of fibre sections together. The retaining means 250 includes an anchor portion 252, one or more leg portions 254 and 10 a retaining portion 256. The retaining means 250 is in the form of a filament 251 and the anchor portion 252 is in the form of a fibre embedded in the first layer of viscoelastic acoustic barrier material 230. The retaining portion 256 is in the form of a loop 260. The filament 251 is formed from the same material as the batt, by the process of needle-punching in which a needle drives a batt fibre perpendicular to the batt plane and into the 15 curing or cured first viscoelastic layer 230.
An additional layer of viscoelastic acoustic barrier material is provided in some embodiments such as Figs 2, 4, and 5-7. That is, the additional layer of viscoelastic acoustic barrier material 230 is affixed to the top surface 214 of the batt 212; in one 20 embodiment by adhesive and in another embodiment by enveloping or embedding the ends of the batt fibres or retaining fibres into the curing viscoelastic material. The additional layer of viscoelastic acoustic barrier material 230 is in the form of a limp material, being a polymeric elastomer 232 impregnated with a material (not shown) in the form of calcium carbonate (not shown), or, in another embodiment, a composition including a mixture of 25 water, gelatine, glycerine and a filler material. A non-limiting example appears below. The additional layer 230 is like the other layer, approximately 1.7mm thick, of density 1470kg/m3.
In another preferred embodiment, the layer 230 is poured onto the needle-punched 30 fibres of the batt so that the needle-punched fibres are enveloped or embedded in the curing or cured layer 230 for improved retention of the layer 230 by the needle-punched firbres.
552633
A facing 234 is provided in the form of aluminium foil 236 to provide a degree of fire protection and constrained-layer damping effect for the polymeric elastomer 232 and batt 212. The facing 234 is adhered to an upper surface of the first layer of viscoelastic 5 acoustic barrier material 230.
The needle-punch retention filament 251 holds and compresses the fibres 218 together to form a stiffer, denser batt 212 than would otherwise have been constructed. The advantage is that in operation, the mass of the first layer of viscoelastic acoustic
barrier material is less likely to tear the fibres 218 away from their hold on each other. The filaments 251 tend to provide additional support along the filament 251 axis for the polyester fibres 218 and lamina 230 so that the lamina 230 does not tear the batt 212 and/or structure 210 apart. The result is that an intact barrier to incident noise is provided by the structure 210 for a longer period of time, at a lower cost than other materials.
Another second preferred embodiment of the second aspect of the present invention is shown in Figure 4. It is a double-thickness of that embodiment shown in Figure 3,
where like numerals denote like parts.
A laminate structure 94 is provided according to yet another preferred embodiment of the present invention which has an additional layer 95, the additional layer 95 being in the form of barrier/damping portions 96 and shown in Figures 5 and 6. In use, the additional layer 95 is pressed against the surface upon which it is mounted. The damping portions 96 are in the form of the viscoelastic acoustic material 230 in any of its preferred
forms - the filled gelatine composition or the filled polymeric composition. The portions 95 and 96 are poured onto, or adhered or otherwise affixed to the batt to attach to or embed the batt fibres or retaining fibres for improved retention along the axis of the relevant fibre. The portions 96 may be affixed in strips or a matrix of pads in order to reduce mass of laminate, without appreciably reducing the retention, absorption, decoupling or damping.
Turning to Figure 7, a similar embodiment to those shown in Figs 3 and 4 is shown, except that there are two first layers of viscoelastic barrier material sandwiching a batt.
552633
This panel is used in squares of approximately 300mm x 300mm which form floor tiles. These tiles are placed underneath floor coverings to reduce peak impact forces and reduce structural vibration, reflection and thus overall Leq.
In some applications, the specially formulated non slip viscoelastic strips or pad matrix situated on the batt are, when installed, generally in contact with a substrate in the form of rigid support (panel, pipe, bulkhead etc.), effectively increasing the decay rate of any vibration. Decay rate is the speed in dB/second at which the vibration reduces after panel excitation has ceased - the higher the decay rate, the better the acoustic performance,
One feature of a preferred embodiment of the present invention, being the composition of the first viscoelastic barrier material, will become better understood from the following example of a preferred but non-limiting embodiment thereof.
Example
100 g of water together with 100 g of glycerine and 10 g of starch was mixed and then heated to a temperature of 85 °C. 80 g of gelatine and 20 g of magnesium chloride was 20 then dissolved into the mixture and a gel was formed. 310 g of barium sulphate was then added to the gel providing a composition with good flexibility, elasticity, tensile strength, and density with good film forming properties. The composition had the following composition by weight:
16% water;
16% glycerine;
1.5% starch;
13% gelatine;
3.5% magnesium chloride; and 30 50% barium sulphate.
RECEIVED at IPONZ on 26 March 2010
C:\NRPonW\DCC\TXS\2787371 1JJOC -25/03/2010 ______
552633
12-
The composition was then extruded into a flat sheet and bonded onto an aluminium film and then brought down to room temperature whereby the composition cured to form a sheet of composite material of 4mm in thickness that showed excellent sound dampening properties.
In one embodiment, the layer or layers of viscoelastic barrier material are poured onto the end of the fibres of the batt with pouring heads (not shown), the heads being computer controlled in order to pour a broad, covering panel, or strips, or a matrix of pads.
Finally, it is to be understood that various alterations, modifications and/or additions may be incorporated into the various constructions and arrangements of parts without departing from the spirit or ambit of the invention
Throughout this specification and the claims which follow, unless the context
requires otherwise, the word "comprise", and variations such as "comprises" or "comprising", will be understood to imply the inclusion of a stated integer or step or group of integers or steps but not the exclusion of any other integer or step or group of integers or steps.
The reference in this specification to any prior publication (or information derived from it), or to any matter which is known, is not, and should not be taken as an acknowledgment or admission or any form of suggestion that the prior publication (or information derived from it) or known matter forms part of the common general knowledge in the field of endeavour to which this specification relates.
Claims (41)
1. An acoustic laminate including: a first layer of viscoelastic acoustic battier material a flexible sound absorbing/sound decoupling batt affixed to the first layer of viscoelastic acoustic barrier material, the flexible batt at rest defining a batt plane; 5 the flexible batt including a plurality of batt filaments, the flexible batt further including retaining filaments wherein the batt filaments or the retaining filaments are disposed perpendicular to the batt plane and having end portions thereof disposed at a batt surface, the end portions affixed to the viscoelastic barrier material so that either the first layer of viscoelastic acoustic barrier material or the 10 flexible sound absorbing/decoupling batt itself may be retained in spaced relation from a mounting surface when the laminate is so mounted, the retention being achieved in any orientation by bearing a mass load of the batt or first layer of viscoelastic material along the axis of the affixed batt filaments or retaining filaments. 15
2. An acoustic laminate according to claim 1 wherein the end portions of the batt filaments or retaining filaments are embedded in the first layer of viscoelastic barrier material so as to improve retention of the first layer or batt. 20
3. An acoustic laminate according to claim 1 or 2 wherein the first layer of viscoelastic acoustic barrier material is in the form of strips spaced apart from one another along an axis of the batt plane or pads spaced apart from one another across a matrix or grid in the batt plane. 25
4. An acoustic laminate according to any previous claim wherein the batt filaments are in the form of one or more folds or loops arranged along fold or loop axes of the batt plane into leaves, each leaf commencing at a first surface, extending towards another surface and returning to the first surface, so that sound absorption and load bearing is carried out by the batt filaments. 30
5. An acoustic laminate according to any previous claim wherein a plurality of leaves are arranged along a surface or between two surfaces, to form the or each flexible RECEIVED at IPONZ on 26 March 2010 C\NRPar(bKDCCYTXStt787371 l.DOC-25/03/2010 ------ 552633 -14- batt.
6. An acoustic laminate according to any previous claim wherein the batt filaments and retention filaments are constructed from mineral wool, glass filaments or 5 polyester.
7. Au acoustic laminate according to any previous claim wherein the batt filaments are aligned parallel with the batt plane, and the retention filaments are formed to be perpendicularly-orientated from the batt filaments by needle-punching the batt 10 filaments into the first layer of viscoelastic acoustic barrier material.
8. An acoustic laminate according to claim 7 wherein the ends of the batt filaments that are needle-punched are embedded in the first layer of viscoelastic material during curing of the first layer. 15
9. An acoustic laminate according to any previous claim wherein a second layer of viscoelastic material is provided on an opposite side of the batt from the first layer, wherein the second layer of the viscoelastic material, the batt and the first layer of viscoelastic material is by the perpendicular orientation of the retention filaments of 20 the acoustic decoupling batt.
10. An acoustic laminate according to any previous claim wherein a second batt and further layers viscoelastic material are provided, suitably retained by the perpendicular orientation of the retention filaments of the decoupling batt. 25
11. An acoustic laminate according to any previous claim wherein the first layer of viscoelastic acoustic barrier material is of a density of approximately 1000kg/m3.
12. An acoustic laminate according to any previous claim wherein the first layer of 30 viscoelastic acoustic barrier material has a density of approximately 1470kg/m3.
13. An acoustic laminate according to any previous claim wherein the first layer of RECEIVED at IPONZ on 26 March 2010 C:\NRPortW\DCCYTXS\2 7g737l_l.DOC-25/O3/201O 552633 - 15 - viscoelastic acoustic barrier material has a surface density of approximately 2.5kg/m2.
14. An acoustic laminate according to any previous claim wherein the first layer of 5 viscoelastic acoustic barrier material has a thickness of below 6mm.
15. An acoustic laminate according to any previous claim wherein the first layer of viscoelastic acoustic barrier material has a thickness of approximately 1.7mm. 10
16. An acoustic laminate according to any previous claim wherein the first layer of viscoelastic acoustic barrier is constructed from a polymeric elastomer impregnated with a particulate material.
17. An acoustic laminate according to claim 16 wherein the particulate material is 15 calcium carbonate.
18. An acoustic laminate according to any previous claim wherein the first layer of viscoelastic acoustic barrier material is a composition including water, gelatine, glycerine and a filler material. 20
19. An acoustic laminate according to claim 18 wherein the composition includes: 5-40 wt% water 5-30 wt% gelatine 5-40 wt% glycerine; and 25 20 - 60 wt% filler material.
20. An acoustic laminate according to claim 18 or 19 wherein the composition also includes 1 to 15 wt% of a group II metal chloride such as for example calcium chloride or magnesium chloride. 30
21. An acoustic laminate according to any one of claims 18-20 wherein the composition includes 2 to 10 wt% magnesium chloride. RECEIVED at IPONZ on 26 March 2010 C:\NRPortbl\DCC\UiS\2787371 1.DOC-25/03/201CJ 552633 -16-
22. An acoustic laminate according to any one of claims 18-21 wherein the composition includes 0.5 to 7 wt% starch or gluten. 5
23. An acoustic laminate according to any one of claims 18-22 wherein the starch is provided from the addition of cornflour to the composition.
24. An acoustic laminate according to any one of claims 18-23 wherein the filler material is a non-reactive material with a high density. 10
25. An acoustic laminate according to claim 24 wherein the density is greater than 1 g/cm3.
26. An acoustic laminate according to claim 25 wherein the density of the filler 15 material is approximately 2.0 to 3.0 g/cm3.
27. An acoustic laminate according to any one of claims 24 - 26 wherein the filler material may be chosen from any non-reactive material with a high density such as for example barium sulphate or KAOLIN. 20
28. An acoustic laminate according to any one of claims 18-27 wherein the composition includes: 10-25 wt% water 5 - 20 wt% gelatine 25 10-25 wt% glycerine; 40 - 60 wt% filler material; 1-10 wt% magnesium chloride; and 0.5 - 3 wt% starch. 30
29. An acoustic laminate according to any one of claims 18-28 wherein the composition further includes one or mopre of the following: ethylene; propylene glycols; polyvinyl alcohols; deodorisers; anti-oxidants and fungicides. RECEIVED at IPONZ on 26 March 2010 C:\NRPortbI\DCC\TXS\2787371_l.DOC-25/03/201(J 552633 17-
30. An acoustic laminate according to any previous claim wherein the Young's Modules of the first layer of viscoelastic material is less than 344kPa. 5
31. An acoustic laminate according to any previous claim wherein, the first layer of viscoelastic acoustic barrier material is faced on one side with a nonwoven polyester of thickness approximately 0.05mm.
32. An acoustic laminate according to any previous claim wherein on one side of the 10 first layer of viscoelastic material there is provided an aluminium film reinforced with polyester as a water barrier and to provide some resistance for the laminate from fire damage.
33. An acoustic laminate according to any previous claim wherein a floor covering is 15 mounted thereon which "floats" on the acoustic laminate in order to reduce peak impact forces from footfall, reducing structural vibration through, and reflection from the surfaces within an enclosure.
34. A method for producing an acoustic laminate, the method including the steps of: 20 affixing a layer of viscoelastic acoustic barrier material onto a flexible batt which has batt filaments or retaining filaments arranged perpendicular to a batt plane in which the flexible batt is disposed at rest, so that ends of the batt filaments or retaining filaments at a surface of the batt plane are affixed to the layer of the viscoelastic acoustic barrier material for retention of the batt or first layer in spaced 25 relation to a mounting surface when the laminate is so mounted.
35. The method according to claim 34 wherein affixing the first layer involves adhering the first layer to the batt. 30 36.
A method according to claim 34 wherein affixing the first layer involves pouring the first layer onto the flexible batt so that the ends of the batt filaments or retaining filaments are embedded in the first layer when it cures, providing improved RECEIVED at IPONZ on 26 March 2010 C:\NRPortbl\DCC\TXS\2787371_l.DOC-25/03/2010 552633 18- retention of the first layer to the flexible bait.
37. A method according to claim 34 or 36 wherein the first layer is poured in spaced-apart strips along an axis of the batt plane or in a matrix of pads spaced across a batt surface plane.
38. A method according to claim 36 or 37 wherein a second flexible batt is affixed to the first layer while the first layer is curing so as to embed the ends of the retaining filaments for improved retention of the flexible batt or assembly.
39. A method according to claims 34 - 38 wherein further layers of viscoelastic acoustic material and flexible batts are provided, which may be effectively retained by the perpendicular orientation of the retaining filaments.
40. An acoustic laminate substantially as hereinbefore described with reference to the attached drawings.
41. A floor tile substantially as hereinbefore with reference to the attached drawings.
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
AU2004903270A AU2004903270A0 (en) | 2004-06-17 | Laminate structure | |
AU2004904482A AU2004904482A0 (en) | 2004-08-10 | Laminate structure | |
AU2004906645A AU2004906645A0 (en) | 2004-11-22 | A composition for producing sheet material | |
PCT/AU2005/000521 WO2005124044A1 (en) | 2004-06-17 | 2005-04-11 | Acoustic laminate |
Publications (1)
Publication Number | Publication Date |
---|---|
NZ552633A true NZ552633A (en) | 2010-04-30 |
Family
ID=35509715
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
NZ552633A NZ552633A (en) | 2004-06-17 | 2005-04-11 | Acoustic laminate |
Country Status (5)
Country | Link |
---|---|
US (1) | US7874402B2 (en) |
EP (1) | EP1766149A4 (en) |
CA (1) | CA2570368C (en) |
NZ (1) | NZ552633A (en) |
WO (1) | WO2005124044A1 (en) |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005124044A1 (en) * | 2004-06-17 | 2005-12-29 | Doneux Philippe Pierre Marie J | Acoustic laminate |
US8495851B2 (en) * | 2004-09-10 | 2013-07-30 | Serious Energy, Inc. | Acoustical sound proofing material and methods for manufacturing same |
US8424251B2 (en) * | 2007-04-12 | 2013-04-23 | Serious Energy, Inc. | Sound Proofing material with improved damping and structural integrity |
US8397864B2 (en) | 2007-04-24 | 2013-03-19 | Serious Energy, Inc. | Acoustical sound proofing material with improved fire resistance and methods for manufacturing same |
JP5457368B2 (en) * | 2007-12-21 | 2014-04-02 | スリーエム イノベーティブ プロパティーズ カンパニー | Soundproofing material using viscoelastic phononic crystal |
JP5194972B2 (en) * | 2008-04-09 | 2013-05-08 | トヨタ紡織株式会社 | Soundproof material |
JP5341002B2 (en) * | 2010-03-12 | 2013-11-13 | 日本バイリーン株式会社 | Substrate for skin material, skin material and molded body |
WO2013067600A1 (en) * | 2011-11-09 | 2013-05-16 | Philippe Pierre Marie Joseph Doneux | A composition for producing sheet material with sound dampening and sound insulating properties |
WO2014087348A1 (en) * | 2012-12-04 | 2014-06-12 | Nlt Spine Ltd. | System & method for deploying implant |
NZ630937A (en) * | 2013-05-09 | 2017-12-22 | Acoustic Space Pty Ltd | A sound insulating sheet material with a cellular structure including gelatine and/or a process for producing the same |
AU2014101211B4 (en) * | 2013-05-09 | 2015-01-29 | Acoustic Space Pty Ltd | A sound insulating sheet material with a cellular structure including gelatine and/or a process for producing the same |
CN113954402B (en) * | 2021-09-30 | 2023-02-03 | 江苏佰家丽新材料科技股份有限公司 | Manufacturing method of antibacterial sound-absorbing board and antibacterial sound-absorbing board |
Family Cites Families (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE367892A (en) * | 1929-02-19 | 1900-01-01 | ||
US2807595A (en) * | 1952-11-22 | 1957-09-24 | Du Pont | Process for modifying urea-formaldehyde solid foam |
US3424270A (en) * | 1965-05-12 | 1969-01-28 | Us Plywood Champ Papers Inc | Viscoelastic sound-blocking material with filler of high density particles |
JPS55105044A (en) * | 1977-12-23 | 1980-08-12 | Oji Paper Co | Acoustic material |
US4384634A (en) * | 1979-12-18 | 1983-05-24 | United Technologies Corporation | Sound absorbing structure |
US5068001A (en) * | 1987-12-16 | 1991-11-26 | Reinhold Haussling | Method of making a sound absorbing laminate |
FR2657045B1 (en) * | 1990-01-17 | 1992-06-12 | Matfor | COMPOSITE PANEL IN PARTICULAR FOR A MOBILE PARTITION OF A BUILDING, AND ITS MANUFACTURING METHOD. |
EP0461328A1 (en) * | 1990-06-15 | 1991-12-18 | Tine Holding S.A. | Sound insulation system for use in the interior of a room |
US5351988A (en) * | 1990-11-27 | 1994-10-04 | Alliedsignal Inc. | Hybrid inflator with staged inflation capability |
US5445861A (en) * | 1992-09-04 | 1995-08-29 | The Boeing Company | Lightweight honeycomb panel structure |
US5945643A (en) * | 1995-06-16 | 1999-08-31 | Casser; Donald J. | Vibration dampening material and process |
FR2739213B1 (en) * | 1995-09-21 | 1998-03-06 | Artec Aerospace Sarl | METHOD FOR ATTENUATING THE AMPLITUDE OF THE RADIUS PRESSURE WAVE BY THE SURFACE OF A MATERIAL SUBJECT TO MECHANICAL AND / OR ACOUSTIC VIBRATION AT THE LEVEL OF AN INCIDENT OR REFLECTED SURFACE |
DE59810045D1 (en) * | 1997-07-31 | 2003-12-04 | Thueringer Daemmstoffwerke Gmb | Mineral wool insulation element and process for its manufacture |
AU3006700A (en) * | 1999-03-02 | 2000-09-21 | Owens Corning | Sound attenuating structural systems and sound attenuating board members used therefor |
US6109389A (en) * | 1999-05-11 | 2000-08-29 | Lydall, Inc. | Acoustical insulating barrier and method of making the barrier |
US6399694B1 (en) * | 2000-06-30 | 2002-06-04 | Owens Corning Fiberglas Technology, Inc. | Colorable fiberglass insulation |
US7922964B2 (en) * | 2002-08-30 | 2011-04-12 | Itn Nanovation Ag | Ceramic hollow fibers made from nanoscale powder particles |
WO2005124044A1 (en) * | 2004-06-17 | 2005-12-29 | Doneux Philippe Pierre Marie J | Acoustic laminate |
US7837009B2 (en) * | 2005-04-01 | 2010-11-23 | Buckeye Technologies Inc. | Nonwoven material for acoustic insulation, and process for manufacture |
-
2005
- 2005-04-11 WO PCT/AU2005/000521 patent/WO2005124044A1/en active Application Filing
- 2005-04-11 CA CA2570368A patent/CA2570368C/en not_active Expired - Fee Related
- 2005-04-11 NZ NZ552633A patent/NZ552633A/en not_active IP Right Cessation
- 2005-04-11 EP EP05729704A patent/EP1766149A4/en not_active Withdrawn
- 2005-04-11 US US11/629,676 patent/US7874402B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
US20080116006A1 (en) | 2008-05-22 |
WO2005124044A1 (en) | 2005-12-29 |
CA2570368C (en) | 2011-06-21 |
EP1766149A1 (en) | 2007-03-28 |
US7874402B2 (en) | 2011-01-25 |
EP1766149A4 (en) | 2011-11-02 |
CA2570368A1 (en) | 2005-12-29 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US7874402B2 (en) | Acoustic laminate | |
US8448389B2 (en) | Sound transmission reducing construction elements | |
CA2379679A1 (en) | Metal building insulation assembly | |
US5834711A (en) | Sound control through resonance damping | |
EP0658419A1 (en) | Vibration damping superabsorbent composites | |
CA1261279A (en) | Acoustically insulating floor panel | |
KR100801297B1 (en) | Soundproof mat and establishment construction | |
JP4413344B2 (en) | Soundproof floor structure | |
JP3914033B2 (en) | Anti-vibration and heat insulation floor structure for buildings | |
KR100730700B1 (en) | Noise protecting structure of floor for multilayered building | |
KR100756415B1 (en) | Shock-absorbing material and floor impact noise reduction structure of building | |
RU2671261C1 (en) | Complex for acoustical protection of the operator | |
AU2005254578A1 (en) | Acoustic laminate | |
JPH0782872A (en) | Sound insulating floor material | |
JPH0596675A (en) | Sandwiched board | |
JPH0355705Y2 (en) | ||
AU2006241378A1 (en) | Floating floor | |
RU183532U1 (en) | MULTILAYER ELASTIC SOUND INSULATING MATERIAL | |
RU2643205C1 (en) | Device for acoustic protection of operator | |
KR20040021982A (en) | a heat insulating and impacting sound reducing material for a multi-storey building | |
RU2651566C1 (en) | Method of acoustical protection of the operator | |
RU2646996C1 (en) | Complex for acoustical protection of the operator | |
JPH0332181Y2 (en) | ||
KR20040102248A (en) | The shock-absorbing sheet of the hypocaust floor | |
JP2003147949A (en) | Vibration control and water-proof floor structure of building |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
RENW | Renewal (renewal fees accepted) | ||
PSEA | Patent sealed | ||
RENW | Renewal (renewal fees accepted) | ||
LAPS | Patent lapsed |